Quantitative determination of podophyllotoxin in dermal and blood microdialysis samples of rats by liquid chromatography-tandem mass spectrometry / 南方医科大学学报
Journal of Southern Medical University
;
(12): 1256-1267, 2010.
Article
in Chinese
| WPRIM
| ID: wpr-336206
ABSTRACT
<p><b>OBJECTIVE</b>To develop and validate a sensitive method for quantitative analysis of podophyllotoxin in blood and dermal microdialysis samples of rats based on liquid chromatography-tandem mass spectrometry (UFLC-MS-MS).</p><p><b>METHODS</b>The microdialysis samples were prepared by liquid-liquid extraction using ethyl acetate with etoposide as the internal standard (IS). Podophyllotoxin was separated with an Agilent ZORBAX XDB-C18 column (2.1 mmx50 mm, 3.5 microm). The mobile phase consisted of acetonitrile 10 mmol/L ammonium acetate (4060, V/V) at a flow rate of 0.3 ml/min and the analysis was performed at the ambient temperature. The UFLC-MS/MS system was operated in the mode of multiple reaction monitoring using the electrospray ionization technique in positive mode.</p><p><b>RESULTS</b>Podophyllotoxin and etoposide responses were optimized at the transitions m/z 432.7-->397.3 and 589.5-->229.5, respectively. Calibration curves were linear over the range 2.0-1000 ng/ml. The lowest limits of quantification and detection values were 2.0 ng/ml and 0.7 ng/ml, respectively. The inter- and intra-day precision and accuracy were both less than 15%.</p><p><b>CONCLUSION</b>This selective and sensitive method can be used to quantity podophyllotoxin in the blood and dermal microdialysates of rats.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Podophyllotoxin
/
Skin
/
Blood
/
Pharmacokinetics
/
Chromatography, Liquid
/
Sensitivity and Specificity
/
Microdialysis
/
Tandem Mass Spectrometry
/
Metabolism
/
Methods
Type of study:
Diagnostic study
Limits:
Animals
Language:
Chinese
Journal:
Journal of Southern Medical University
Year:
2010
Type:
Article
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